Angophora

Description

Plants in the genus Angophora are trees, occasionally shrubs, with rough bark except for A. costata. The juvenile leaves differ from adult leaves in being hairy with raised oil glands. Both juvenile and adult leaves are arranged in opposite pairs, the adult leaves usually glabrous and paler on the lower surface. The flower buds are arranged in groups of three or seven. The flower has four or five small sepals, reduced to small projections on the rim of the floral cup. There are four or five more or less round, keeled, overlapping petals and whorls of many creamy white stamens. Unlike in Eucalyptus and Corymbia, the petals and sepals are not fused to form a cap-like operculum. The fruit is a papery or thin, slightly woody, hairy capsule with longitudinal ribs.

Taxonomy

The genus Angophora was first formally described in 1797 by Antonio José Cavanilles in his book Icones et Descriptiones Plantarum.

Angophora is closely related to Corymbia and Eucalyptus, and all three genera are often referred to as "eucalypts". Collectively the eucalypts dominate many Australian ecosystems. Taxonomists have long recognised the relationships between the eucalypt taxa, but have not agreed upon a classification scheme. Some have proposed merging Angophora and Corymbia into genus Eucalyptus as subgenera, a plan which was immediately rejected by others. Some authors maintain Angophora as a genus, while others continue to debate the issue.

Among the eucalypts, Angophora species were nicknamed "apples" by European settlers, who thought they resembled apple trees. Many are still known commonly as apples today.

Species

The following is a list species of accepted by the Australian Plant Census as at March 2020:

• Angophora bakeri E.C.Hall - NSW
  • Angophora bakeri E.C.Hall subsp. bakeri - NSW
  • Angophora bakeri subsp. crassifolia G.J.Leach - NSW
• Angophora costata (Gaertn.) Britten – Qld, NSW
  • Angophora costata (Gaertn.) Britten subsp. costata – Qld, NSW
  • Angophora costata subsp. euryphylla L.A.S.Johnson ex G.J.Leach – NSW
• Angophora floribunda (Sm.) Sweet - Qld, NSW, Vic.
• Angophora hispida (Sm.) Blaxell - NSW
• Angophora inopina K.D.Hill - NSW
• Angophora leiocarpa (L.A.S.Johnson ex G.J.Leach) K.R.Thiele & Ladiges - NSW, Qld.
• Angophora melanoxylon R.T.Baker - Qld., NSW
• Angophora robur L.A.SJohnson & K.D.Hill - NSW
• Angophora subvelutina F.Muell. - NSW
• Angophora woodsiana F.M.Bailey - Qld., NSW

Distribution

Angophoras are found in coastal Queensland, New South Wales and Victoria from the Atherton Tableland to eastern Victoria.

Angophora hispida DSC 7157 (11023015645).jpg |A. hispida buds & flowers Angophora hispida DSC 6592 (33368522242).jpg|A. hispida fruit Angophora hispida Angophora hispida new growth IMG 5611 (1867066136).jpg|A. hispida lignotuber regrowth after fire Angophora hispida DSC 4503 (27666550975).jpg|A. hispida opposite and decussate leaves

References

References

1. "''Corymbia''". Royal Botanic Garden Sydney.
2. "More about ''Angophora''". Euclid: Centre for Australian National Biodiversity Research.
3. "''Angophora''". Australian Biological Resources Study, Department of Agriculture, Water and the Environment, Canberra.
4. "''Angophora''". APNI.
5. (1797). "Icones et Descriptiones Plantarum (Volume 4)".
6. "Eucalypts: Eucalyptus, Corymbia, Angophora". Australian Native Plants Society (Australia).
7. Brooker, M. I. H. (2000). [http://www.publish.csiro.au/paper/SB98008 A new classification of the genus ''Eucalyptus'' L'Her.(Myrtaceae). ''Australian Systematic Botany'' 13(1), 79–148.]
8. Ladiges, P. Y. and F. Udovicic. (2000). [https://www.researchgate.net/publication/235491523 Comment on a new classification of the eucalypts.] ''Australian Systematic Botany'' 13(1), 149–52.
9. Steane, D. A., et al. (2001). [https://eprints.utas.edu.au/3236/1/Steane-Sil-Gen-2001.pdf Development and characterisation of microsatellite loci in ''Eucalyptus globulus'' (Myrtaceae).] ''Silvae Genetica'' 50(2), 89–91.
10. Brummitt, R. K. (2003). [http://depts.washington.edu/phylo/LabMeetingReadings/Week1/BrummittParaphyly1.pdf Further dogged defense of paraphyletic taxa.] ''Taxon'' 52(4), 803-04.
11. Nelson, G., et al. (2003). [http://depts.washington.edu/phylo/LabMeetingReadings/Week1/NelsonReply.pdf Brummitt on paraphyly: a response.] ''Taxon'' 52(2), 295-98.
12. "''Angophora''". Australian Plant Census.